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(12) PATENT APPLICATION PUBLICATION
(19) INDIA (21) Application No.: 1172/MUM/2004 A
(22) Date of filing of Application: 01/11/2004 (43) Publication Date: 09/06/2006
(54) Title of the invention: ULTRAVIOLET ABSORBING AND YELLOW LIGHT FILTERING
GLASSES FOR LAMP ENVELOPES
(51) International classification : B 31B 5/26,
17/04, C03C
25/42
(31) Priority Document No : 60/106,574
(32) Priority Date : 02/11/1998
(33) Name of priority country : U.S.A.
(86) International Application No : NIL
and Filing Date : NIL
(87) International Publication No : NIL
(61) Patent of addition to :
Application No
NIL
(62)
Filed on : N.A.
Divisional to Application No : 736/BOM/1999
Filed on : 29/10/1999
(71) Name of Applicant:
CORNING INCORPORATED
Address of the Applicant:
THE STATE OF NEW YORK,
UNITED STATES OF AMERICA, OF
HOUGHTON PARK, CORNING,
NEW YORK 14831, U.S.A.
(72) Name of the Inventor:
1. RICHARD HERBERT CRANE
2. LAURA OSCSODAL
3. WILLIAM LLOYD
4. RONALD LEROY STEWART
Filed U/S 5(2) before The Patents
(Amendment) Act, 2005: NO
(57) Abstract: The present invention is directed at a family of glasses capable of absorbing UV radiation and
filtering yellow light in the visible region of the spectrum, the family of glasses having a composition consisting
essentially, in terms of weight percent on the oxide basis; of: 55-95.7% SiO2, 0-28% B2O3, 0.5-18%, Al2O3, 0-4%
SrO,0-13% BaO, 0-13% CaO, 0-8% MgO, 0-7.5% Na2O, 0-9.5% K2O, 0-1.5% Li2O,0-1.5% Sb2O3,0.4-4.5%
Nd2O3, and 0.1-1% CeO2. Glasses of the present invention are capable of employment as envelopes for tungstenhalogen
lamps and other high temperature light sources, as well as sealed-beam incandescent headlights.
Drawing: 02 Sheets.
Total Pages: 16.
Fig. Nil
The Patent Office Journal 09/06/2006 10865